Study and Implementation of Index Mechanism for GML Data

Ya Juan Yao; Fang Tian

doi:10.4028/www.scientific.net/AMR.940.449

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 940Study and Implementation of Index Mechanism for...

Study and Implementation of Index Mechanism for GML Data

Abstract:

GML is the encoding specification of geospatial data, more and more geospatial data are represented in GML documents. It’s efficient to use database technologies to manage and maintain the geospatial data described by GML. The index in a database can help to locate the tuples for a query. In order to query GML data efficiently, appropriate index structure should be designed. In this paper, a method to build path index for the GML document is proposed based on its storage schema. The path index records the sequences and levels of elements in the GML document. Tuples stored in tables can be quickly located for a query with the path index, and the structure information recorded in the path index can help to reconstruct the GML document.

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Machinery, Materials Science and Engineering Applications 2014

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Periodical:

Advanced Materials Research (Volume 940)

Pages:

449-452

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.940.449

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Online since:

June 2014

Authors:

Ya Juan Yao*, Fang Tian

Keywords:

GML, Path Index, Spatial Database, Spatial Index

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* - Corresponding Author

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